. >>> where is jimmy hoffa, an enduring american mystery, tonight, why they're digging into the evidence. >>> and an extraordinary suggestion from the head of apple. >>> and making a difference, under the friday night lights, something everybody can hear about. nightly news begins now. >>> good evening, i'm savannah guthrie, in tonight for brian. it has been more than two weeks since the u.s. ambassador to libya and three other americans were killed at the u.s. consulate in benghazi. tonight, a rare reversal, tonight, the intelligence officials say they originally got it wrong. patience, with the investigation, and shifting explanations from the administration. tonight, members of congress from both parties are demanding answers, and on the ground in libya, the american officials sent to piece this case together can't even get to the scene of the attack. we begin tonight with our justice correspondent, pete williams in washington, good evening. >> reporter: savannah, it is a very unusual statement, the top officials admitted today that the attacks that were spontaneous were wrong, but ge
